<?php
function pre_next_bottom()
{
   echo "<div class='nav-below'>";
   echo "\n";
   echo "<div class='nav-previous'>";
   previous_post_link('◄ %link');
   echo "</div>";
   echo "<div class='nav-next'>";
   next_post_link('%link ►'); 
   echo "</div>"; 
   echo "\n"; 
   echo "</div>";
   echo "\n";
}
?>